• Soft-delete for disappeared provider hosts
• Hosts that vanish from cloud sync are marked stale instead of silently kept or hard-deleted. Stale hosts appear dimmed in the host list and sort to the bottom
• Purge stale hosts with X. Confirmation dialog shows host names (up to 6) before deletion
• Per-provider purge from the provider list (X key scoped to the selected provider)
• Provider list shows per-provider stale count in red with X key hint in footer
• Detail panel shows "Stale" field with relative timestamp in red
• Virtual "stale" tag for filtering (tag:stale fuzzy, tag=stale exact, appears in tag picker)
• Stale connection warning on Enter, edit, delete, clone, tunnels, snippets and file browser
• Editing a stale host clears the stale marker on save
• Stale hosts automatically un-stale when they reappear in the next provider sync (including stopped VMs with empty IP)
• Partial sync failures suppress stale marking to prevent false positives
• Active tunnels cleaned up on purge (after successful config write)
• CLI: purple sync prints "Marked N stale." per provider
• Footer separators between every action (consistency fix across all screens)
• Delete confirmation dialog widened to 52 columns (consistent with other dialogs)
• Detail panel route visualization uses display width instead of byte length for Unicode correctness
• Fix missing blank line when adding a provider host before another provider's group header
• 143 new tests covering stale marking, clearing, purge, sort, filter, config integrity and round-trip fidelity (4111 total)